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Summary of Contents for RF-Star RF-BM-ND08A
- Page 1 RF-BM-ND08A nRF52811 Multi-Protocols Module Supporting BLE, Bluetooth Direction Finding, Thread Version 1.0 Shenzhen RF-star Technology Co., Ltd. May 25 , 2023 All rights reserved. Those responsible for unauthorized reproduction will be prosecuted.
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Page 2: Device Overview
RF-BM-ND04A www.szrfstar.com V1.0 - May, 2023 1 Device Overview 1.1 Description RF-BM-ND08A is an RF module based on Nordic SoC nRF52811 with ARM ® Cortex ® -M4 32-bit processor. It integrates a 32.768 kHz and a 32 MHz crystal, an LC filter, an antenna matching and antenna options of a meander line inverted- F PCB antenna and a half-hole interface. -
Page 3: Functional Block Diagram
Reset 1.7 V ~ 3.6 V Figure 1. Functional Block Diagram of RF-BM-ND08A 1.5 Part Number Conventions The part numbers are of the form of RF-BM-ND08A where the fields are defined as follows: Company Name Module Version nRF52811 Version RF-STAR... -
Page 4: Table Of Contents
4.6.3 High Bit Error Rate ..........................12 4.7 Electrostatics Discharge Warnings ......................12 4.8 Soldering and Reflow Condition ......................... 12 5 Optional Package Specification ..........................14 5 Revision History ................................16 6 Contact Us ..................................17 Shenzhen RF-star Technology Co., Ltd. Page 3 of 17... -
Page 5: Module Configuration And Functions
RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 2 Module Configuration and Functions 2.1 Module Parameters Table 1. Parameters of RF-BM-ND08A Chipset nRF52811 Supply Power Voltage 1.7 V ~ 3.6 V, recommended to 3.3 V Frequency 2402 MHz ~ 2480 MHz Transmit Power -20.0 dBm ~ +4.0 dBm (Typical: 0 dBm) -
Page 6: Module Pin Diagram
RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 2.2 Module Pin Diagram Top View Bottom View Figure 3. Pin Diagram of RF-BM-ND08A 2.3 Pin Functions Table 2. Pin Functions of RF-BM-ND08A Name Chip Pin Pin Type Description Antenna interface Ground Power supply 1.7 V ~ 3.6 V, Recommend 3.3 V P0.25... - Page 7 SWD debugging ports are on the bottom side of the module, which is not pulled out in the stamp half hole way, please refer to the module pin diagram for details. Shenzhen RF-star Technology Co., Ltd. Page 6 of 17...
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Page 8: Specifications
The functional operation does not guarantee performance beyond the limits of the conditional parameter values in the table below. Long-term work beyond this limit will affect the reliability of the module more or less. Table 3. Recommended Operating Conditions of RF-BM-ND08A Items Condition Min. -
Page 9: Application, Implementation, And Layout
RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 4 Application, Implementation, and Layout 4.1 Module Photos Figure 4. Photos of RF-BM-ND08A 4.2 Recommended PCB Footprint Figure 5. Recommended PCB Footprint of RF-BM-ND08A (mm) Shenzhen RF-star Technology Co., Ltd. Page 8 of 17... -
Page 10: Schematic Diagram
RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 4.3 Schematic Diagram Figure 6. Schematic Diagram of RF-BM-ND08A 4.4 Antenna 4.4.1 Antenna Design Recommendation 1. The antenna installation structure has a great influence on the module performance. It is necessary to ensure the antenna is exposed and preferably vertically upward. -
Page 11: Antenna Output Mode Modification
The module should be far away from the power electromagnetic, transformer, high-frequency wiring, and other parts with large electromagnetic interference. Shenzhen RF-star Technology Co., Ltd. Page 10 of 17... -
Page 12: Trouble Shooting
Please ensure a stable power supply and no frequently fluctuated voltage. 2. Please ensure the anti-static installation and the electrostatic sensitivity of high-frequency devices. Shenzhen RF-star Technology Co., Ltd. Page 11 of 17... -
Page 13: High Bit Error Rate
3. If the extension wire or feeder wire is of poor quality or too long, the bit error rate will be high. 4.7 Electrostatics Discharge Warnings The module will be damaged for the discharge of static. RF-star suggests that all modules should follow the 3 precautions below: 1. - Page 14 V1.0 - May, 2023 Time from 25 ℃ to Peak Temperature (t Max. 6 minutes Max. 8 minutes Time of Soldering Zone (t 20±10 s 20±10 s Figure 9. Recommended Reflow for Lead-Free Solder Shenzhen RF-star Technology Co., Ltd. Page 13 of 17...
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Page 15: Optional Package Specification
The default package method is . If you need the modules to be shipped by tape & reel, pls contact us in advance. Figure 10. Default Package by Tray Shenzhen RF-star Technology Co., Ltd. Page 14 of 17... - Page 16 RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 Figure 11. Package by Tape & Reel Shenzhen RF-star Technology Co., Ltd. Page 15 of 17...
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Page 17: Revision History
1. The document will be optimized and updated from time to time. Before using this document, please make sure it is the latest version. 2. To obtain the latest document, please download it from the official website: www.rfstariot.com and www.szrfstar.com. Shenzhen RF-star Technology Co., Ltd. Page 16 of 17... -
Page 18: Contact Us
RF-BM-ND08A www.szrfstar.com V1.0 - May, 2023 6 Contact Us SHENZHEN RF-STAR TECHNOLOGY CO., LTD. Shenzhen HQ: Add.: Room 502, Podium Building No. 12, Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen, Guangdong, China, 518063 Tel.: 86-755-8632 9829 Chengdu Branch: Add.: N2-1604, Global Center, North No.
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